Influence of relative density on granular materials behavior: DEM simulations of triaxial tests

2009 ◽  
Vol 11 (4) ◽  
pp. 221-236 ◽  
Author(s):  
Christophe Salot ◽  
Philippe Gotteland ◽  
Pascal Villard
Keyword(s):  
Relative Density ◽  
Granular Materials ◽  
Triaxial Tests ◽  
Dem Simulations ◽  
Materials Behavior

Study of the shear behavior of binary granular materials by DEM simulations and experimental triaxial tests

2017 ◽  
Vol 28 (9) ◽  
pp. 2198-2210 ◽  
Author(s):  
Kai Wu ◽  
Sébastien Rémond ◽  
NorEdine Abriak ◽  
Patrick Pizette ◽  
Frédéric Becquart ◽  
...  
Keyword(s):  
Granular Materials ◽  
Shear Behavior ◽  
Triaxial Tests ◽  
Dem Simulations

scholarly journals Penetration strength of coarse granular materials from DEM simulations

2013 ◽  
Author(s):  
Juan Carlos Quezada ◽  
Gilles Saussine ◽  
Pierre Breul ◽  
Farhang Radjai
Keyword(s):  
Granular Materials ◽  
Dem Simulations

The strength and dilatancy of sand

1992 ◽  
Vol 29 (3) ◽  
pp. 522-526 ◽  
Author(s):  
Y. P. Vaid ◽  
S. Sasitharan
Keyword(s):  
Relative Density ◽  
Triaxial Test ◽  
Friction Angle ◽  
Stress Path ◽  
Triaxial Tests ◽  
Confining Stress ◽  
Peak Friction Angle ◽  
Loading Direction ◽  
Dilation Rate ◽  
Unique Relationship

The effects of stress path and loading direction in the triaxial test on strength and dilatancy of sand are investigated. It is shown that the unique relationship observed between peak friction angle and dilation rate at peak in conventional triaxial tests is followed regardless of stress path, confining stress at failure, relative density, and the mode of loading (compression or extension). Key words : sand, peak friction angle, dilatancy, stress path, triaxial test.

Importance of Measuring Local Strains in Cyclic Triaxial Tests on Granular Materials

2009 ◽  
pp. 288-288-15 ◽  
Author(s):  
F Tatsuoka ◽  
S Teachavorasinskun ◽  
J Dong ◽  
Y Kohata ◽  
T Sato
Keyword(s):  
Granular Materials ◽  
Triaxial Tests ◽  
Cyclic Triaxial ◽  
Cyclic Triaxial Tests ◽  
Local Strains

scholarly journals A constitutive model with microstructure evolution for flow of rate-independent granular materials

2011 ◽  
Vol 682 ◽  
pp. 590-616 ◽  
Author(s):  
JIN SUN ◽  
SANKARAN SUNDARESAN
Keyword(s):  
Friction Coefficient ◽  
Constitutive Model ◽  
Granular Materials ◽  
Simple Shear ◽  
Evolution Equations ◽  
Complex Loading ◽  
Dem Simulations ◽  
Particle Level ◽  
Complex Rheology ◽  
Using Data

A constitutive model is developed for the complex rheology of rate-independent granular materials. The closures for the pressure and the macroscopic friction coefficient are linked to microstructure through evolution equations for coordination number and fabric. The material constants in the model are functions of particle-level properties and are calibrated using data generated through simulations of steady and unsteady simple shear using the discrete element method (DEM). This model is verified against DEM simulations at complex loading conditions.

Recent results of triaxial tests with granular materials

1990 ◽  
Vol 60 (2) ◽  
pp. 99-119 ◽  
Author(s):  
D. Kolymbas ◽  
W. Wu
Keyword(s):  
Granular Materials ◽  
Triaxial Tests
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